linux-kernel - [PATCH 08/22] ARM: dts: imx7-colibri: Add touch controllers

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Message-Id: <20190730144649.19022-9-dev@pschenker.ch>
Date:   Tue, 30 Jul 2019 16:46:35 +0200
From:   Philippe Schenker <dev@...henker.ch>
To:     marcel.ziswiler@...adex.com, max.krummenacher@...adex.com,
        stefan@...er.ch, devicetree@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     Philippe Schenker <philippe.schenker@...adex.com>,
        Fabio Estevam <festevam@...il.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        Sascha Hauer <s.hauer@...gutronix.de>
Subject: [PATCH 08/22] ARM: dts: imx7-colibri: Add touch controllers

From: Philippe Schenker <philippe.schenker@...adex.com>

Add atmel mxt multitouch controller and TouchRevolution multitouch
controller which are connected over an I2C bus.

Signed-off-by: Philippe Schenker <philippe.schenker@...adex.com>
---

 arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi | 37 +++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi b/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi
index d4dbc4fc1adf..f6cbbe876532 100644
--- a/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi
+++ b/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi
@@ -145,6 +145,34 @@
 &i2c4 {
 	status = "okay";
 
+	/*
+	 * the PCAPs use SODIMM 28/30, also used for PWM<B>, PWM<C>, aka pwm2,
+	 * pwm3. so if you enable one of the PCAP controllers disable the pwms
+	 */
+	atmel_mxt_ts: atmel_mxt_ts@4a {
+		compatible = "atmel,maxtouch";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpiotouch>;
+		reg = <0x4a>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <9 IRQ_TYPE_EDGE_FALLING>; /* SODIMM 28 */
+		reset-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>; /* SODIMM 30 */
+		status = "disabled";
+	};
+
+	touch: touchrevf0710a@10 {
+		compatible = "touchrevolution,fusion-f0710a";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpiotouch>;
+		reg = <0x10>;
+			/* SODIMM 28, Pen down interrupt */
+		gpios = <&gpio1 9 GPIO_ACTIVE_HIGH
+			/* SODIMM 30, Reset interrupt */
+			 &gpio1 10 GPIO_ACTIVE_LOW
+			>;
+		status = "disabled";
+	};
+
 	/* M41T0M6 real time clock on carrier board */
 	rtc: m41t0m6@68 {
 		compatible = "st,m41t0";
@@ -200,3 +228,12 @@
 	vmmc-supply = <&reg_3v3>;
 	status = "okay";
 };
+
+&iomuxc {
+	pinctrl_gpiotouch: touchgpios {
+		fsl,pins = <
+			MX7D_PAD_GPIO1_IO09__GPIO1_IO9		0x74
+			MX7D_PAD_GPIO1_IO10__GPIO1_IO10		0x14
+		>;
+	};
+};
-- 
2.22.0